I remember the large flat floppy disks, then the smaller ones, then the ZIP drives.I remember blowing in the Nintendo cartridges as a way to get them to work when they refused to cooperate
Are you talking about this floppy?
Or this one?
There's an even bigger floppy, but those were for mainframes.....

I thought they might be records. I don't think I'm correct though. Because I just read that they are yellow.